Ask question

Ask question

All categories

3 years ago

10

For the pie chart shown, what is the maximum number of people who could have an income of $45,000 if the total number of people

surveyed was 25,635? A) 1,334 B) 3,233 C) 3,333 D) 4,332

1 answer:

vfiekz [6]3 years ago

7 0

There is no pie chart shown, please attach one.

You might be interested in

Are the two triangles similar? how do you know

Zinaida [17]

I forgot what they’re called but the angles opposite to each other are the same degree. It’s a theorem, just search up the name

7 0

3 years ago

If you flipped the graph y=x^2+2x-2 vertically, you would get the graph y=-(x^2 +2x-2). true or false

Mars2501 [29]

If you flipped the graph y=x^2+2x-2 vertically, you would get the graph y=-(x^2+2x-2) this is True.

5 0

2 years ago

Which statements must be true? Select each correct answer.

Verdich [7]

The answer choices ? did u forgot that

8 0

3 years ago

Read 2 more answers

A rectangle prism is shown below. What is the volume of the prism?

8_murik_8 [283]

I can help with the formula just do the math on a calculator you multiply length x width x height

8 0

2 years ago

Find a linear second-order differential equation f(x, y, y', y'') = 0 for which y = c1x + c2x3 is a two-parameter family of solu

Alisiya [41]

Let $y=C_1x+C_2x^3=C_1y_1+C_2y_2$ . Then $y_1$ and $y_2$ are two fundamental, linearly independent solution that satisfy

$f(x,y_1,{y_1}',{y_1}'')=0$
$f(x,y_2,{y_2}',{y_2}'')=0$

Note that ${y_1}'=1$ , so that $x{y_1}'-y_1=0$ . Adding $y''$ doesn't change this, since ${y_1}''=0$ .

So if we suppose

$f(x,y,y',y'')=y''+xy'-y=0$

then substituting $y=y_2$ would give

$6x+x(3x^2)-x^3=6x+2x^3\neq0$

To make sure everything cancels out, multiply the second degree term by $-\dfrac{x^2}3$ , so that

$f(x,y,y',y'')=-\dfrac{x^2}3y''+xy'-y$

Then if $y=y_1+y_2$ , we get

$-\dfrac{x^2}3(0+6x)+x(1+3x^2)-(x+x^3)=-2x^3+x+3x^3-x-x^3=0$

as desired. So one possible ODE would be

$-\dfrac{x^2}3y''+xy'-y=0\iff x^2y''-3xy'+3y=0$

(See "Euler-Cauchy equation" for more info)

6 0

3 years ago